# Observational Trial With Leios/Alesse

> **NCT00481650** · — · COMPLETED · sponsor: **Wyeth is now a wholly owned subsidiary of Pfizer**

## Conditions studied

- Contraceptives, Oral, Combined

## Interventions

- **DRUG:** Leios/Alesse

## Key facts

- **NCT ID:** NCT00481650
- **Lead sponsor:** Wyeth is now a wholly owned subsidiary of Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2005-05
- **Primary completion:** —
- **Final completion:** 2007-03
- **Target enrollment:** — (—)
- **Last updated:** 2007-12-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00481650

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00481650, "Observational Trial With Leios/Alesse". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT00481650. Licensed CC0.

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